CVE-2026-15487

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory published 2026-07-12. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 6.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A vulnerability was found in TRENDnet TEW-821DAP 1.11B03. This impacts the function sub_41FBD0 of the file /goform/system_ntp of the component Firmware Update Handler. Performing a manipulation of the argument Hostname results in os command injection. The attack may be initiated remotely. The vendor explains: "We are unable to confirm the existence of the vulnerabilities for (...) TEW-821DAP (v1.0R) as these items have been EOL. " This vulnerability only affects products that are no longer supported by the maintainer.

CVSS v3
6.3
EG Score
6.3(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity63% × 45%
Exploitation2% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
76%
KEV
Not listed

Published

July 12, 2026

Last Modified

July 13, 2026

Advisory Details (1)

Auto-updated Jul 12, 2026
No patch confirmed yet.
generic

IOT_Firmware_Update/Trendnet/TEW-821DAP_CI5.md at main · IOTRes/IOT_Firmware_Update · GitHub

https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_CI5.md

Vendor Advisories for CVE-2026-15487(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 17× in last 7d / 81× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 121 total refreshes for this CVE.

  1. 2026-08-30 05:47 UTCEG score recompute
  2. 2026-08-30 05:47 UTCGHSA enrichment
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-28 21:41 UTCEPSS rescore
  5. 2026-08-28 02:37 UTCEG score recompute
  6. 2026-08-28 02:37 UTCGHSA enrichment
  7. 2026-08-27 14:25 UTCEPSS rescore
  8. 2026-08-27 01:44 UTCEG score recompute
  9. 2026-08-27 01:44 UTCGHSA enrichment
  10. 2026-08-26 14:46 UTCEPSS rescore
  11. 2026-08-26 02:42 UTCEG score recompute
  12. 2026-08-26 02:42 UTCGHSA enrichment
  13. 2026-08-25 13:48 UTCEPSS rescore
  14. 2026-08-24 20:35 UTCEG score recompute
  15. 2026-08-24 20:35 UTCGHSA enrichment
  16. 2026-08-23 21:32 UTCEG score recompute
  17. 2026-08-23 21:32 UTCGHSA enrichment
  18. 2026-08-23 00:19 UTCEPSS rescore
  19. 2026-08-22 22:31 UTCEG score recompute
  20. 2026-08-22 22:31 UTCGHSA enrichment
  21. 2026-08-21 23:49 UTCEPSS rescore
  22. 2026-08-21 23:29 UTCGHSA enrichment
  23. 2026-08-21 00:26 UTCEG score recompute
  24. 2026-08-21 00:26 UTCGHSA enrichment
  25. 2026-08-20 22:55 UTCEPSS rescore
Show 75 more
  1. 2026-08-20 01:25 UTCEG score recompute
  2. 2026-08-20 01:25 UTCGHSA enrichment
  3. 2026-08-19 17:03 UTCEPSS rescore
  4. 2026-08-18 20:30 UTCEG score recompute
  5. 2026-08-18 20:30 UTCGHSA enrichment
  6. 2026-08-18 13:48 UTCEPSS rescore
  7. 2026-08-17 15:23 UTCEG score recompute
  8. 2026-08-17 15:23 UTCGHSA enrichment
  9. 2026-08-17 13:47 UTCEPSS rescore
  10. 2026-08-16 16:22 UTCEG score recompute
  11. 2026-08-16 16:22 UTCGHSA enrichment
  12. 2026-08-16 14:56 UTCEPSS rescore
  13. 2026-08-16 02:14 UTCEPSS rescore
  14. 2026-08-15 17:21 UTCEG score recompute
  15. 2026-08-15 17:21 UTCGHSA enrichment
  16. 2026-08-15 01:30 UTCEPSS rescore
  17. 2026-08-14 18:19 UTCEG score recompute
  18. 2026-08-14 18:19 UTCGHSA enrichment
  19. 2026-08-13 22:00 UTCEPSS rescore
  20. 2026-08-13 19:17 UTCGHSA enrichment
  21. 2026-08-12 20:16 UTCEG score recompute
  22. 2026-08-12 20:16 UTCGHSA enrichment
  23. 2026-08-12 13:50 UTCEPSS rescore
  24. 2026-08-11 21:14 UTCEG score recompute
  25. 2026-08-11 21:14 UTCGHSA enrichment
  26. 2026-08-11 13:42 UTCEPSS rescore
  27. 2026-08-11 00:00 UTCEPSS rescore
  28. 2026-08-10 22:13 UTCGHSA enrichment
  29. 2026-08-09 23:11 UTCEG score recompute
  30. 2026-08-09 23:11 UTCGHSA enrichment
  31. 2026-08-09 13:46 UTCEPSS rescore
  32. 2026-08-09 00:10 UTCEG score recompute
  33. 2026-08-09 00:10 UTCGHSA enrichment
  34. 2026-08-08 16:37 UTCEPSS rescore
  35. 2026-08-08 01:08 UTCEG score recompute
  36. 2026-08-08 01:08 UTCGHSA enrichment
  37. 2026-08-07 02:06 UTCEG score recompute
  38. 2026-08-07 02:06 UTCGHSA enrichment
  39. 2026-08-06 13:46 UTCEPSS rescore
  40. 2026-08-06 03:04 UTCEG score recompute
  41. 2026-08-06 03:04 UTCGHSA enrichment
  42. 2026-08-05 19:17 UTCEPSS rescore
  43. 2026-08-05 04:03 UTCEG score recompute
  44. 2026-08-05 04:03 UTCGHSA enrichment
  45. 2026-08-04 15:10 UTCEPSS rescore
  46. 2026-08-04 10:38 UTCEPSS rescore
  47. 2026-08-04 05:00 UTCEG score recompute
  48. 2026-08-04 05:00 UTCGHSA enrichment
  49. 2026-08-03 10:35 UTCEPSS rescore
  50. 2026-08-03 05:59 UTCGHSA enrichment
  51. 2026-08-02 06:19 UTCEG score recompute
  52. 2026-08-02 06:19 UTCGHSA enrichment
  53. 2026-08-02 02:26 UTCEPSS rescore
  54. 2026-08-01 07:16 UTCEG score recompute
  55. 2026-08-01 07:16 UTCGHSA enrichment
  56. 2026-08-01 04:15 UTCEPSS rescore
  57. 2026-07-31 07:19 UTCEG score recompute
  58. 2026-07-31 07:19 UTCGHSA enrichment
  59. 2026-07-30 16:27 UTCEPSS rescore
  60. 2026-07-30 08:17 UTCEG score recompute
  61. 2026-07-30 08:17 UTCGHSA enrichment
  62. 2026-07-30 01:30 UTCEPSS rescore
  63. 2026-07-29 09:08 UTCEG score recompute
  64. 2026-07-29 09:08 UTCGHSA enrichment
  65. 2026-07-28 15:36 UTCEPSS rescore
  66. 2026-07-28 10:06 UTCEG score recompute
  67. 2026-07-28 10:06 UTCGHSA enrichment
  68. 2026-07-27 14:13 UTCEPSS rescore
  69. 2026-07-27 11:04 UTCEG score recompute
  70. 2026-07-27 11:04 UTCGHSA enrichment
  71. 2026-07-26 14:54 UTCEPSS rescore
  72. 2026-07-26 14:54 UTCEPSS rescore
  73. 2026-07-26 12:01 UTCEG score recompute
  74. 2026-07-26 12:01 UTCGHSA enrichment
  75. 2026-07-25 14:17 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15487?
CVE-2026-15487 is a medium vulnerability published on July 12, 2026. A vulnerability was found in TRENDnet TEW-821DAP 1.11B03. This impacts the function sub41FBD0 of the file /goform/systemntp of the component Firmware Update Handler. Performing a manipulation of the argument Hostname results in os command injection. The attack may be initiated remotely. The vendor…
When was CVE-2026-15487 disclosed?
CVE-2026-15487 was first published in the National Vulnerability Database on July 12, 2026, with the most recent update on July 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15487 actively exploited?
CVE-2026-15487 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 23.8% of all scored CVEs.
What is the CVSS score of CVE-2026-15487?
CVE-2026-15487 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-15487?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15487, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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